Bump spring-shell.version from 4.0.2 to 4.0.3 (#3128)

Bumps `spring-shell.version` from 4.0.2 to 4.0.3.

Updates `org.springframework.shell:spring-shell-starter` from 4.0.2 to 4.0.3
- [Release notes](https://github.com/spring-projects/spring-shell/releases)
- [Commits](https://github.com/spring-projects/spring-shell/compare/v4.0.2...v4.0.3)

Updates `org.springframework.shell:spring-shell-jline` from 4.0.2 to 4.0.3
- [Release notes](https://github.com/spring-projects/spring-shell/releases)
- [Commits](https://github.com/spring-projects/spring-shell/compare/v4.0.2...v4.0.3)

---
updated-dependencies:
- dependency-name: org.springframework.shell:spring-shell-starter
  dependency-version: 4.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.shell:spring-shell-jline
  dependency-version: 4.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

hawkbit-sdk/hawkbit-sdk-demo/pom.xml

@@ -25,7 +25,7 @@
     <description>Test / Example of how SDK could be used to for devices and for Mgmt API access</description>
 
     <properties>
-        <spring-shell.version>4.0.2</spring-shell.version>
+        <spring-shell.version>4.0.3</spring-shell.version>
         <spring.app.class>org.eclipse.hawkbit.sdk.demo.multidevice.MultiDeviceApp</spring.app.class>
         <start-class>${spring.app.class}</start-class>
     </properties>